Home / 56,904.80-85,357.20-39,190.10

Finding the Fourth Proportional to 56,904.80, 85,357.20 and 39,190.10

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Solution

The fourth proportional to 56,904.80, 85,357.20 and 39,190.10 is: 58,785.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,904.80 : 85,357.20 = 39,190.10 : x
  2. Step 2: Convert to fraction form
    56,904.80/85,357.20 = 39,190.10/x
  3. Step 3: Cross multiply
    56,904.80x = 85,357.20 × 39,190.10
  4. Step 4: Simplify right side
    56,904.80x = 3,345,157,203.72
  5. Step 5: Solve for x
    x = 3,345,157,203.72/56,904.80
  6. Step 6: Final answer
    x = 58,785.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.